Impact of a Premorbid Psychiatric Disorder on the Incidence of Delirium during ICU Stay, Morbidity, and Long-Term Mortality

Table 1

Baseline characteristics.

	Psychiatric ()	Nonpsychiatric ()	value
Age (years)	63 (56–70)	68 (61–76)	<0.001
Male (%)	47	67	<0.001
APACHE III score	70 (55–94)	68 (53–87)	0.36
Predicted mortality (%)	21 (5–40)	15 (4–36)	0.21
SOFA score	7 (5–9)	7 (5–9)	0.83
Type of admission (%)
Elective surgery	28	38
Emergency surgery	33	25	0.10
Medical	39	37
Reason for admission (%)
Sepsis	35	35
Respiratory failure	4	7
Trauma	1	3
Cardiac surgery	38	30	0.05
Congestive heart failure	4	1
Noncardiac surgery	8	8
Renal failure	2	0
Other	8	16
Intoxications (%)
Smoking	18	12	0.12
Alcohol	6	15	0.008
Soft drugs	0	2	0.04
Hard drugs	0	2	0.04
Medication (number of drugs)	6 (3–10)	5 (2–8)	0.03
Psychoactive drugs (%)
Antipsychotics	82	0	<0.001
Antidepressants	53	2	<0.001
Sedatives	23	3	<0.001
Hypnotics	20	8	0.002

Data are presented as median (IQR). APACHE: Acute Physiology and Chronic Health Evaluation; SOFA Sequential Organ Failure Assessment.